Weight Classes

All divisions — who holds the belts.

Men's Divisions(17)

Heavyweight

200+ lbs

Fragmented

Belt	Champion	Country	Record
WBA	Oleksandr Usyk	🇺🇦Ukraine	24-0-0 (15 KO)
WBC	Oleksandr Usyk	🇺🇦Ukraine	24-0-0 (15 KO)
IBF	Oleksandr Usyk	🇺🇦Ukraine	24-0-0 (15 KO)
WBO	Fabio Wardley	🇬🇧United Kingdom	20-0-1 (19 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Cruiserweight

200 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Gilberto Ramírez	🇲🇽Mexico	48-1-0 (30 KO)
WBC	Noel Mikaelian	🇩🇪Germany	28-3-0 (12 KO)
IBF	Vacant	—	—
WBO	Gilberto Ramírez	🇲🇽Mexico	48-1-0 (30 KO)

Belts Held: 3 / 4Unique Holders: 2Fragmentation: 33%Vacant Present

Light Heavyweight

175 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Dmitry Bivol	🇷🇺Russia	24-1-0 (12 KO)
WBC	David Benavidez	🇺🇸United States	31-0-0 (25 KO)
IBF	Dmitry Bivol	🇷🇺Russia	24-1-0 (12 KO)
WBO	Dmitry Bivol	🇷🇺Russia	24-1-0 (12 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Super Middleweight

168 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Armando Reséndiz	🇽🇽Unknown	16-2-0 (11 KO)
WBC	Christian M'billi	🇫🇷France	29-0-1 (24 KO)
IBF	Vacant	—	—
WBO	Vacant	—	—

Belts Held: 2 / 4Unique Holders: 2Fragmentation: 33%Vacant Present

Middleweight

160 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Erislandy Lara	🇨🇺Cuba	32-3-3 (19 KO)
WBC	Carlos Adames	🇩🇴Dominican Republic	25-1-1 (18 KO)
IBF	Vacant	—	—
WBO	Janibek Alimkhanuly	🇰🇿Kazakhstan	17-0-0 (12 KO)

Belts Held: 3 / 4Unique Holders: 3Fragmentation: 67%Vacant Present

Super Welterweight

154 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Xander Zayas	🇺🇸United States	23-0-0 (13 KO)
WBC	Sebastian Fundora	🇺🇸United States	23-1-1 (15 KO)
IBF	Josh Kelly	🇬🇧United Kingdom	18-1-1 (9 KO)
WBO	Xander Zayas	🇺🇸United States	23-0-0 (13 KO)

Belts Held: 4 / 4Unique Holders: 3Fragmentation: 67%

Welterweight

147 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Rolando Romero	🇺🇸United States	17-2-0 (13 KO)
WBC	Ryan Garcia	🇺🇸United States	2-0-1 (20 KO)
IBF	Lewis Crocker	🇽🇽Unknown	22-0-0 (11 KO)
WBO	Devin Haney	🇺🇸United States	0-0-1 (15 KO)

Belts Held: 4 / 4Unique Holders: 4Fragmentation: 100%

Super Lightweight

140 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Gary Antuanne Russell	🇺🇸United States	19-1-0 (17 KO)
WBC	Dalton Smith	🇽🇽Unknown	19-0-0 (14 KO)
IBF	Richardson Hitchins	🇺🇸United States	20-0-0 (8 KO)
WBO	Shakur Stevenson	🇺🇸United States	25-0-0 (11 KO)

Belts Held: 4 / 4Unique Holders: 4Fragmentation: 100%

Lightweight

135 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Vacant	—	—
WBC	Jadier Herrera	🇽🇽Unknown	18-0-0 (16 KO)
IBF	Raymond Muratalla	🇽🇽Unknown	24-0-0 (17 KO)
WBO	Abdullah Mason	🇺🇸United States	20-0-0 (17 KO)

Belts Held: 3 / 4Unique Holders: 3Fragmentation: 67%Vacant Present

Super Featherweight

130 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Anthony Cacace	🇬🇧United Kingdom	26-1-0 (9 KO)
WBC	O'Shaquie Foster	🇽🇽Unknown	24-3-0 (12 KO)
IBF	Emanuel Navarrete	🇲🇽Mexico	2-1-1 (33 KO)
WBO	Emanuel Navarrete	🇲🇽Mexico	2-1-1 (33 KO)

Belts Held: 4 / 4Unique Holders: 3Fragmentation: 67%

Featherweight

126 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Brandon Figueroa	🇺🇸United States	27-2-1 (20 KO)
WBC	Bruce Carrington	🇺🇸United States	17-0-0 (10 KO)
IBF	Angelo Leo	🇺🇸United States	26-1-0 (12 KO)
WBO	Rafael Espinoza	🇲🇽Mexico	28-0-0 (24 KO)

Belts Held: 4 / 4Unique Holders: 4Fragmentation: 100%

Super Bantamweight

122 lbs

Undisputed

Belt	Champion	Country	Record
WBA	Naoya Inoue	🇯🇵Japan	32-0-0 (27 KO)
WBC	Naoya Inoue	🇯🇵Japan	32-0-0 (27 KO)
IBF	Naoya Inoue	🇯🇵Japan	32-0-0 (27 KO)
WBO	Naoya Inoue	🇯🇵Japan	32-0-0 (27 KO)

Belts Held: 4 / 4Unique Holders: 1Fragmentation: 0%

Bantamweight

118 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Seiya Tsutsumi	🇯🇵Japan	13-0-3 (8 KO)
WBC	Takuma Inoue	🇯🇵Japan	21-2-0 (5 KO)
IBF	José Salas	🇽🇽Unknown	17-0-0 (11 KO)
WBO	Christian Medina	🇲🇽Mexico	26-4-0 (19 KO)

Belts Held: 4 / 4Unique Holders: 4Fragmentation: 100%

Super Flyweight

115 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Jesse Rodriguez	🇺🇸United States	23-0-0 (16 KO)
WBC	Jesse Rodriguez	🇺🇸United States	23-0-0 (16 KO)
IBF	Willibaldo García	🇲🇽Mexico	5-2-1 (13 KO)
WBO	Jesse Rodriguez	🇺🇸United States	23-0-0 (16 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Flyweight

112 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Ricardo Sandoval	🇽🇽Unknown	27-2-0 (18 KO)
WBC	Ricardo Sandoval	🇽🇽Unknown	27-2-0 (18 KO)
IBF	Masamichi Yabuki	🇯🇵Japan	19-4-0 (18 KO)
WBO	Anthony Olascuaga	🇽🇽Unknown	12-1-0 (9 KO)

Belts Held: 4 / 4Unique Holders: 3Fragmentation: 67%

Light Flyweight

108 lbs

Fragmented

Belt	Champion	Country	Record
WBA	René Santiago	🇽🇽Unknown	15-4-0 (9 KO)
WBC	Shokichi Iwata	🇯🇵Japan	16-2-0 (12 KO)
IBF	Thanongsak Simsri	🇹🇭Thailand	39-1-0 (34 KO)
WBO	René Santiago	🇽🇽Unknown	15-4-0 (9 KO)

Belts Held: 4 / 4Unique Holders: 3Fragmentation: 67%

Minimumweight

105 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Oscar Collazo	🇽🇽Unknown	14-0-0 (11 KO)
WBC	Melvin Jerusalem	🇵🇭Philippines	25-3-0 (12 KO)
IBF	Pedro Taduran	🇵🇭Philippines	19-4-1 (13 KO)
WBO	Oscar Collazo	🇽🇽Unknown	14-0-0 (11 KO)

Belts Held: 4 / 4Unique Holders: 3Fragmentation: 67%

Women's Divisions(17)

Heavyweight

200+ lbs

Undisputed

Belt	Champion	Country	Record
WBA	Claressa Shields	🇺🇸United States	18-0-0 (3 KO)
WBC	Claressa Shields	🇺🇸United States	18-0-0 (3 KO)
IBF	Claressa Shields	🇺🇸United States	18-0-0 (3 KO)
WBO	Claressa Shields	🇺🇸United States	18-0-0 (3 KO)

Belts Held: 4 / 4Unique Holders: 1Fragmentation: 0%

Light Heavyweight

175 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Danielle Perkins	🇺🇸United States	6-1-0 (3 KO)
WBC	Vacant	—	—
IBF	Sarah Scheurich	🇩🇪Germany	7-0-0 (4 KO)
WBO	Vacant	—	—

Belts Held: 2 / 4Unique Holders: 2Fragmentation: 33%Vacant Present

Super Middleweight

168 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Franchón Crews-Dezurn	🇺🇸United States	2-0-1 (2 KO)
WBC	Franchón Crews-Dezurn	🇺🇸United States	2-0-1 (2 KO)
IBF	Shadasia Green	🇺🇸United States	16-1-0 (11 KO)
WBO	Shadasia Green	🇺🇸United States	16-1-0 (11 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Middleweight

160 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Kaye Scott	🇦🇺Australia	5-1-1 (0 KO)
WBC	Kaye Scott	🇦🇺Australia	5-1-1 (0 KO)
IBF	Desley Robinson	🇽🇽Unknown	11-3-0 (4 KO)
WBO	Desley Robinson	🇽🇽Unknown	11-3-0 (4 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Super Welterweight

154 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Mikaela Mayer	🇺🇸United States	22-2-0 (5 KO)
WBC	Mikaela Mayer	🇺🇸United States	22-2-0 (5 KO)
IBF	Oshae Jones	🇺🇸United States	8-0-0 (3 KO)
WBO	Mikaela Mayer	🇺🇸United States	22-2-0 (5 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Welterweight

147 lbs

Unified

Belt	Champion	Country	Record
WBA	Lauren Price	🇬🇧United Kingdom	9-0-0 (2 KO)
WBC	Lauren Price	🇬🇧United Kingdom	9-0-0 (2 KO)
IBF	Lauren Price	🇬🇧United Kingdom	9-0-0 (2 KO)
WBO	Vacant	—	—

Belts Held: 3 / 4Unique Holders: 1Fragmentation: 0%Vacant Present

Super Lightweight

140 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Katie Taylor	🇮🇪Ireland	25-1-0 (6 KO)
WBC	Sandy Ryan	🇬🇧United Kingdom	9-3-1 (3 KO)
IBF	Katie Taylor	🇮🇪Ireland	25-1-0 (6 KO)
WBO	Katie Taylor	🇮🇪Ireland	25-1-0 (6 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Lightweight

135 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Stephanie Han	🇽🇽Unknown	12-0-0 (3 KO)
WBC	Caroline Dubois	🇬🇧United Kingdom	11-0-1 (5 KO)
IBF	Elif Nur Turhan	🇹🇷Turkey	13-0-0 (8 KO)
WBO	Terri Harper	🇬🇧United Kingdom	16-2-2 (6 KO)

Belts Held: 4 / 4Unique Holders: 4Fragmentation: 100%

Super Featherweight

130 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Alycia Baumgardner	🇺🇸United States	1-0-1 (7 KO)
WBC	Caroline Veyre	🇨🇦Canada	11-1-0 (0 KO)
IBF	Alycia Baumgardner	🇺🇸United States	1-0-1 (7 KO)
WBO	Alycia Baumgardner	🇺🇸United States	1-0-1 (7 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Featherweight

126 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Amanda Serrano	🇺🇸United States	48-4-1 (31 KO)
WBC	Tiara Brown	🇺🇸United States	20-0-0 (11 KO)
IBF	Nina Meinke	🇽🇽Unknown	21-3-0 (4 KO)
WBO	Amanda Serrano	🇺🇸United States	48-4-1 (31 KO)

Belts Held: 4 / 4Unique Holders: 3Fragmentation: 67%

Super Bantamweight

122 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Mayelli Flores	🇽🇽Unknown	13-1-1 (4 KO)
WBC	Ellie Scotney	🇽🇽Unknown	0-0-0 (0 KO)
IBF	Ellie Scotney	🇽🇽Unknown	0-0-0 (0 KO)
WBO	Ellie Scotney	🇽🇽Unknown	0-0-0 (0 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Bantamweight

118 lbs

Undisputed

Belt	Champion	Country	Record
WBA	Cherneka Johnson	🇳🇿New Zealand	18-2-0 (8 KO)
WBC	Cherneka Johnson	🇳🇿New Zealand	18-2-0 (8 KO)
IBF	Cherneka Johnson	🇳🇿New Zealand	18-2-0 (8 KO)
WBO	Cherneka Johnson	🇳🇿New Zealand	18-2-0 (8 KO)

Belts Held: 4 / 4Unique Holders: 1Fragmentation: 0%

Super Flyweight

115 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Jasmine Artiga	🇽🇽Unknown	13-0-1 (6 KO)
WBC	Adelaida Ruiz	🇽🇽Unknown	18-1-1 (8 KO)
IBF	Irma García	🇲🇽Mexico	24-5-1 (4 KO)
WBO	Mizuki Hiruta	🇯🇵Japan	10-0-0 (2 KO)

Belts Held: 4 / 4Unique Holders: 4Fragmentation: 100%

Flyweight

112 lbs

Undisputed

Belt	Champion	Country	Record
WBA	Gabriela Fundora	🇺🇸United States	0-0-1 (9 KO)
WBC	Gabriela Fundora	🇺🇸United States	0-0-1 (9 KO)
IBF	Gabriela Fundora	🇺🇸United States	0-0-1 (9 KO)
WBO	Gabriela Fundora	🇺🇸United States	0-0-1 (9 KO)

Belts Held: 4 / 4Unique Holders: 1Fragmentation: 0%

Light Flyweight

108 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Evelyn Nazarena Bermúdez	🇯🇵Japan	22-1-1 (8 KO)
WBC	Lourdes Juárez	🇽🇽Unknown	39-4-0 (5 KO)
IBF	Evelyn Nazarena Bermúdez	🇯🇵Japan	22-1-1 (8 KO)
WBO	Evelyn Nazarena Bermúdez	🇯🇵Japan	22-1-1 (8 KO)

Belts Held: 4 / 4Unique Holders: 2Fragmentation: 33%

Minimumweight

105 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Sarah Bormann	🇩🇪Germany	21-1-0 (7 KO)
WBC	Yokasta Valle	🇳🇮Nicaragua	33-3-0 (10 KO)
IBF	Kim Clavel	🇨🇦Canada	22-2-0 (3 KO)
WBO	Sarah Bormann	🇩🇪Germany	21-1-0 (7 KO)

Belts Held: 4 / 4Unique Holders: 3Fragmentation: 67%

Atomweight

102 lbs

Fragmented

Belt	Champion	Country	Record
WBA	Isabel Rivero	🇪🇸Spain	12-3-1 (1 KO)
WBC	Camila Zamorano	🇽🇽Unknown	14-0-0 (1 KO)
IBF	Vacant	—	—
WBO	Gabriela Timar	🇽🇽Unknown	16-2-0 (1 KO)

Belts Held: 3 / 4Unique Holders: 3Fragmentation: 67%Vacant Present